{"id":"CVE-2025-47279","aliases":["GHSA-cxrh-j4jr-qwg3"],"url":"https://o3.security/vulnerability/CVE-2025-47279","summary":"undici Denial of Service attack via bad certificate data","details":"Undici is an HTTP/1.1 client for Node.js. Prior to versions 5.29.0, 6.21.2, and 7.5.0, applications that use undici to implement a webhook-like system are vulnerable. If the attacker set up a server with an invalid certificate, and they can force the application to call the webhook repeatedly, then they can cause a memory leak. This has been patched in versions 5.29.0, 6.21.2, and 7.5.0. As a workaound, avoid calling a webhook repeatedly if the webhook fails.","published":"2025-05-15T17:16:02.738Z","modified":"2026-08-08T03:48:14.452548938Z","cvss":{"score":3.1,"severity":"LOW","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"undici","fixedVersion":"5.29.0"},{"ecosystem":"npm","name":"undici","fixedVersion":"6.21.2"},{"ecosystem":"npm","name":"undici","fixedVersion":"7.5.0"}],"fix":{"url":"https://github.com/nodejs/undici/commit/f317618ec28753a4218beccea048bcf89c36db25","label":"nodejs/undici@f317618"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/47xxx/CVE-2025-47279.json"},{"type":"ADVISORY","url":"https://github.com/nodejs/undici/security/advisories/GHSA-cxrh-j4jr-qwg3"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-47279"},{"type":"REPORT","url":"https://github.com/nodejs/undici/issues/3895"},{"type":"FIX","url":"https://github.com/nodejs/undici/commit/f317618ec28753a4218beccea048bcf89c36db25"},{"type":"FIX","url":"https://github.com/nodejs/undici/pull/4088"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-08T03:48:14.452548938Z"}}